Add explicit check for pypy venv (#1356)

* Add explicit check for pypy venv

* Add changelog entry

* Add regression test for --recreate

Author: obestwalter

docs/changelog/1355.bugfix.rst

@@ -0,0 +1 @@
+on venv cleanup: add explicit check for pypy venv to make it possible to recreate it - by :user:`obestwalter`

src/tox/venv.py

@@ -711,6 +711,8 @@ def cleanup_for_venv(venv):
         or (INFO.IS_WIN and dir_items > {"Scripts", "Lib"})
         # non-windows, with lib and bin => OK
         or dir_items > {"bin", "lib"}
+        # pypy has a different lib folder => OK
+        or dir_items > {"bin", "lib_pypy"}
     ):
         venv.status = "error"
         reporter.error(

tests/unit/test_z_cmdline.py

@@ -135,6 +135,12 @@ def test_envdir_would_delete_some_directory(cmd, initproj):
     assert "cowardly refusing to delete `envdir`" in result.out
 
 
+def test_recreate(cmd, initproj):
+    initproj("example-123", filedefs={"tox.ini": ""})
+    cmd("-e", "py", "--notest").assert_success()
+    cmd("-r", "-e", "py", "--notest").assert_success()
+
+
 def test_run_custom_install_command_error(cmd, initproj):
     initproj(
         "interp123-0.5",